Plant Biology
Completion requirements
Pori drwy'r eirfa gan ddefnyddio'r mynegai hwn
Arbennig | A | B | C | CH | D | DD | E | F | FF | G | NG | H | I | L | LL | M | N | O | P | PH | R | RH | S | T | TH | U | W | Y | Y CYFAN
A
ABAAbscisic acid, a plant hormone involved in responses to water stress. | |
Active transportThe movement of substances across a cell membrane using energy. | |
AdhesionAttraction between water molecules and another surface. | |
Apical meristemA region of actively dividing cells at the tip of a stem that produces new growth. | |
AutotrophAn organism that makes its own food using sunlight or chemical energy. | |
B
Boundary layerThin layer of relatively still air surrounding a surface such as a leaf. | |
C
CAMPhotosynthetic adaptation in which stomata typically open mainly at night. | |
CambiumA layer of dividing cells that produces new xylem and phloem in woody plants. | |
Carbon dioxide concentrationThe amount of carbon dioxide available in the air for photosynthesis. | |
Cell wallA rigid outer layer surrounding plant cells, made mainly of cellulose. | |